<html>
	<head>	
		<title>计算机</title>
		<style>
			#container{
				width:600px;
				wargin:20px  auto;
				border:3px black solid;
				}
			#container div{	
				width:180px;
				font-size:100px;
				background-color:grey;
				float:left;	
				border:2px solid black;
				margin:5px 5px;
		}
		</style>
		
</head>
	<body>
		<div id="container">
			<div id="d1">1</div>
			<div id="d2">2</div>
			<div id="d3">3</div>
			<div id="d4">4</div>
			<div id="d5">5</div>
			<div id="d6">6</div>
			<div id="d7">7</div>
			<div id="d8">8</div>
			<div id="d9">9</div>
			<div id="d0">0</div>
		</div>
	</body>
</html>
